On Sun, Dec 17, 2023 at 12:40 PM Andrew Jones <ajones@xxxxxxxxxxxxxxxx> wrote: > > The SBI STA extension enables steal-time accounting. Add the > definitions it specifies. > > Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> > Reviewed-by: Anup Patel <anup@xxxxxxxxxxxxxx> > Signed-off-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx> > --- > arch/riscv/include/asm/sbi.h | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h > index 0892f4421bc4..b6f898c56940 100644 > --- a/arch/riscv/include/asm/sbi.h > +++ b/arch/riscv/include/asm/sbi.h > @@ -31,6 +31,7 @@ enum sbi_ext_id { > SBI_EXT_SRST = 0x53525354, > SBI_EXT_PMU = 0x504D55, > SBI_EXT_DBCN = 0x4442434E, > + SBI_EXT_STA = 0x535441, > > /* Experimentals extensions must lie within this range */ > SBI_EXT_EXPERIMENTAL_START = 0x08000000, > @@ -243,6 +244,22 @@ enum sbi_ext_dbcn_fid { > SBI_EXT_DBCN_CONSOLE_WRITE_BYTE = 2, > }; > > +/* SBI STA (steal-time accounting) extension */ > +enum sbi_ext_sta_fid { > + SBI_EXT_STA_STEAL_TIME_SET_SHMEM = 0, > +}; > + > +struct sbi_sta_struct { > + __le32 sequence; > + __le32 flags; > + __le64 steal; > + u8 preempted; > + u8 pad[47]; > +} __packed; > + > +#define SBI_STA_SHMEM_DISABLE -1 > + > +/* SBI spec version fields */ > #define SBI_SPEC_VERSION_DEFAULT 0x1 > #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 > #define SBI_SPEC_VERSION_MAJOR_MASK 0x7f > -- > 2.43.0 > Reviewed-by: Atish Patra <atishp@xxxxxxxxxxxx> -- Regards, Atish